206 citations · 989 across the 29 of their papers we have counts for
29 papers
Statistical analysis of level spacing ratios in pseudo-integrable systems: semi-Poisson insight and beyond
Afshin Akhshani, Małgorzata Białous, Leszek Sirko
We studied the statistical properties of a quantum system in the pseudo-integrable regime through the gap ratios between consecutive energy levels of the scattering spectra. A two-…
Families of isospectral and isoscattering quantum graphs
Pavel Kurasov, Omer Farooq, Michał Ławniczak +4
A concept of germ graphs and the M-function formalism are employed to construct large families of isospectral and isoscattering graphs. This approach represents a complete departur…
Coupled unidirectional chaotic microwave graphs
Omer Farooq, Afshin Akhshani, Michał Ławniczak +2
We investigate experimentally the undirected open microwave network with internal absorption composed of two coupled directed halves, unidirectional networks and $Γ_{-…
Quantum graphs and microwave networks as narrow band filters for quantum and microwave devices
Afshin Akhshani, Małgorzata Białous, Leszek Sirko
We investigate properties of the transmission amplitude of quantum graphs and microwave networks composed of regular polygons such as triangles and squares. We show that for the gr…
Investigation of the enhancement factor in the regime of semi-Poisson statistics in a singular microwave cavity
Małgorzata Białous, Leszek Sirko
We investigated properties of a singular billiard, that is, a quantum billiard which contains a pointlike (zero-range) perturbation. A singular billiard was simulated experimentall…
Distributions of the Wigner reaction matrix for microwave networks with symplectic symmetry in the presence of absorption
Michal Lawniczak, Afshin Akhshani, Omer Farooq +4
We report on experimental studies of the distribution of the reflection coefficients, and the imaginary and real parts of Wigner's reaction (K) matrix employing open microwave netw…